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QUESTION 101You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application. You use the ADO.NET Entity Framework Designer to model entities. You need to create a Plain Old CLR Object (POCO) class that can be used with the ObjectContext.CreateObject method to create a proxy. What should you do?

A. Create a custom data class that has a Protected constructor that does not have parameters.B. Create a custom data class in which all properties and methods are virtual.C. Create a custom data class that is abstract.D. Create a custom data class that is sealed.

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QUESTION 61You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application that connects to a Microsoft SQL Server 2008 database. You add the following table to the database:CREATE TABLE ObjectCache (Id INT IDENTITY PRIMARY KEY, SerializedObjectData XML)You write the following code segment to retreive records from the ObjectCache table. (Line numbers are included for reference only.)01 string s = GetConnectionStringFromConfigFile(“xmldb”);02 using (SqlConnection conn = new SqlConnection(s))03 using (SqlCommand cmd = new SqlCommand(“select * from ObjectCache”, conn))04 {05 conn.Open();06 SqlDataReader rdr = cmd.ExecuteReader();07 while(rdr.Read())08 {09 …10 DeserializeObject(obj);11 }12 }You need to retreive the data from the SerializedObjectData column and pass it to a method named DeserializeObject. Which line of code should you insert at line 09?

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QUESTION 21You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application. The application connects to a Microsoft SQL Server database. The application stores user names and passwords in the database. You need to ensure that users cannot read passwords extracted from the database. What should you do?

A. Encrypt stored passwords by using the RC2CryptoServiceProvider class.B. Encrypt stored passwords by using the TripleDESCryptoServiceProvider class.C. Append a random salt to the password by using the RNGCryptoServiceProvider class. Encrypt stored passwords by using the RijndaelManaged class.D. Append a random salt to the password by using the RNGCryptoServiceProvider class. Hash stored passwords by using the SHA1CryptoServiceProvider class.

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QUESTION 1You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application. You manually create your own Context class named AdventureWorksDB that inherits from ObjectContext. You need to use AdventureWorksDB to invoke a stored procedure that is defined in the data source. Which method should you call?

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QUESTION 1You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application. You manually create your own Context class named AdventureWorksDB that inherits from ObjectContext. You need to use AdventureWorksDB to invoke a stored procedure that is defined in the data source. Which method should you call?